Mathematics College

I dont understand it

Answers

Answer 1

Answer:

30xy

Step-by-step explanation:

I divided this shape into a square and a rectangle.

Solve:

First I multiplied 2x and 3y

2x*3y= 6xy

Then I multiplied 6x and 4y

6x*4y= 24xy

Then I added them together

24xy+6xy= 30xy

Hope this helps!

Related Questions

On the next test, one of the students score 100 but the remaining 4 students score 50 again. What is the average score on this second test?

Answers

Answer:

Step-by-step explanation:

50+50+50+50+100= 300

divide by 5 students

300/5 = 60

Answer:

now I can answer correctly! 60 is the average

Step-by-step explanation:

100+50(4) =300

50(4)= 200+100=300

300/5= 60

b) A car priced at $3600 is reduced by 25%.
What is the reduced price?

Answers

3600:25 =144

reduced price is 144$

express 729 as a power of 27

Answers

27 to the 2nd power
so uh
27^2

Henri challenges Emile to a walking race. Because Emile's walking rate is faster, Emile gives Henri a 45-meter head start. Emile knows his brother would enjoy winning the race, but he does not want to make the race so short that it is obvious his brother will win. How long should the race be so that Henri will win in a close race?

Answers

Answer:

about 29 seconds and 74 meters

Step-by-step explanation:

There are 1/6 gallons of water in a 2/3 gallon container. What fraction of the container is filled?

Answers

Answer:

1/4

Step-by-step explanation:

2/3 multiply top and bottom of fraction by 2

4/6 is the capacity of the container

1/6 is filled

so 1/4 of the container is filled

Answer:

1/4

Step-by-step explanation:

it takes 2/6 per each 1/3 of a gallon there for there would be 4/6 in 2/3

A horizontal slice of the rectangular prism below is made. The slice is parallel to rectangle. Which of these statements are true? Choose all that correct

Answers

the answer is c d and e

Solve for x
-18x + 21 > -15
OR
20x – 13 >27

Answers

Answer:

x<-3 or x>2, 2<x<-3

Step-by-step explanation:

Subtract/add from each side then divide, if dividing by a negative reverse the sign.

Answer:

all values are x

Step-by-step explanation:

Evaluate Bridget is filling welcome bags for
several new students. Each bag gets
1 magnet. The ratio of magnets to pencils in
each bag is 1:6, and the ratio of erasers to
magnets is 2:1. Which statement below must
be true? Use a model to help explain your
thinking.
• Bridget needs 4 more pencils than erasers.
Bridget needs 3 times as many pencils as
erasers.

Answers

Answer:

sOrRy BoW nEeD SoMe PoInTs Bow

Step-by-step explanation:

PLEASEEEEEEEEEEEEEEEEEEEEEEEEE HELP MEEEEEEEEEEEEEEEEEEEEEEEE

1. Pia drew a circle with a circumference of C and a diameter of 14 in. Pia knows that , and she wrote the following equation to represent the value of .

(a) There is an error in Pia’s equation. Write an equation to correctly represent the value of . Show your work.
(b) Write an equation and find the circumference of the circle.

Answer:

Answers

Answer:

C = 14 x Pi

C = 14 x 3.14

C = 43.96 in

Answer:

Step-by-step explanation:

The answer to (A) is N/A and the answer to (B) is N/A again (Hope this helps!)

There are six checkout tills at a small supermarket. Two of the tills have comfy seats. What is the probability an employee will get a till with a comfy seat?
Give your answer as a fraction

Please can someone help thank you very much :)

Answers

Answer:

1/3

Step-by-step explanation:

2/6 means that 2 out of the 6 tills have comfy seats. 2/6 simplified is 1/3

Answer:

[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

The total amount of tilts is 6

The amount of tilts with comfortable seats is 2

So there are two tilts with comfortable seats out of six tilts that are in the supermarket

Now write it as fraction:

[tex]\frac{2}{6}[/tex] = [tex]\frac{2*1}{2*3}[/tex] (alternatively 2/6)

Here we get the probability

// divide numerator and denominator by 2

[tex]\frac{2*1}{2*3}[/tex] = [tex]\frac{1}{3}[/tex] (alternatively 1/3)

Which expression shows the sum of 8 and a number f

Answers

Answer:

8+f

Step-by-step explanation:

The SUM of 8 and f

Pls tell me if Im wrong

Hope this helps

what is 5/6 - 3/8 plz help

Answers

the answer is: 11/24

what are the x intercepts of y=x^2-x-12

Answers

x intercept: (4,0) , (-3,0)
y intercept: (0,-12)

Hope this helps!

Answer:

The person at the top is right. Give them brainliest

Paul and James are class fellows and their ages are consecutive natural numbers. The product of their ages is 63.Paul is elder than James. Determine ages of both Paul and James.

Answers

Answer:

Step-by-step explanation:

There are no consecutive natural numbers with a product of 63. But, there are two consecutive ODD natural numbers with a productd of 63. Could it be that you typed the problem incorrectly?

What is the difference between the leg and hypotenuse of a right triangle?

Answers

Answer:

The Hypotenuse is always the greater number in length and a way you can where it is, that in your right tringle you have your Base and side. and there always a square between them, so the square will be pointing at the Hypotenuse. and the Right triangle its a triangle but one side is straight

Step-by-step explanation:

Sorry i did my best explanation

An accounting firm has recently recruited six graduates: three men and three women. Three of the graduates are to be selected at random to work in the firm’s suburban office. Construct the probability tree. What is the probability that at least two women will be selected? Round your answer to three decimal places.

Answers

Answer:

a) The probability tree is constructed below

b) the probability that at least two women will be selected is 0.500

Step-by-step explanation:

Given the data in the question;

a) The probability tree is as follows;

3 men, 3 women

↓

_______________________|________________________

↓ ↓ ↓ ↓

3 men 2 men 1 man 0 men

0 women 1 woman 2 woman 3 women

b) the probability that at least two women will be selected

p( at least two women would be selected) = P( there are 2 women out of 3 ) + P( there 3 women out of 3

p( at least two women would be selected) = C

³C₂ × ³C₁ / ⁶C₃ + ³C₃³C₀ / ⁶C₃

= 3!/(2!(3-2)!) × 3!/(1!(3-1)!) / 6!/(3!(6-3)!) + 3!/(3!(3-3)!) × 3!/(0!(3-0)!) / 6!/3!(6-3)!)

= 3 × 3 / 20 + 1 × 1 / 20

= 9/20 + 1/20

= 0.45 + 0.05

p( at least two women would be selected) = 0.500

Therefore, the probability that at least two women will be selected is 0.500

Regina have 3 bags of marbles. There are 25 marbles in each bag. She wants to put an equal number of marbles into 5 bags. Which expression would show how many marbles can go into each bag?

Answers

Answer:

(3×25)÷5=15

hope it helps you

please mark me as brainlist

Answer:

Step-by-step explanation:

first, you add all the marbles 25 x 3 = 75 then you divide by 5 which you get 15

the rate of currency exchange published in the newspaper on a certain day showed 12 pound could be exchange for 96 dollars. how many dollars could be obtained for 102 pounds.

Answers

Answer:

$816

Step-by-step explanation:

ratio would be:

12:96

or:

1:8

so one pound=8 dollars

102x8=816

Find the volume of the cylinder if the radius is 4.5cm and the height is 8cm. Use 3.14 for TT

Answers

Answer:

508.68cm²

Step-by-step explanation:

Volume of a cylinder = πr²h

given r=4.5 cm h =8cm and π=3.14

so volume=

3.14×4.5×4.5×8

=508.68cm²

2 f(x)=x2 + 2x cómo se evalúa?

a) f(3)
b) f(-1)
c) f(x-3)

Answers

Answer:

b) f (-1) ese es el resultado

An art teacher gives a total of 35 pounds of clay to her students. She gives each of her 16 students the same amount of clay. How many pounds of clay does each student get?

Please write it as a fraction.

Answers

Answer:

35/16

Step-by-step explanation:

Answer:

2.1875

Step-by-step explanation:

35/16=2.1875

2.1875 pounds

Is a scale factor of K= 8.5
A reduction or Enlargement and please explain why:)

Answers

Answer:

Enlargement

Step-by-step explanation:

Because when 8.5 will be multiplied by a number, it will increase the value of that number by 8.5 times.

Enlargement, when multiplying future points by 8.5, it will only increase.

73% of 148 grams is what?

Answers

Answer:

108.04 grams

Step-by-step explanation:

Answer: 108.04

Step-by-step explanation:

what’s the answer please

Answers

Answer:

option c. complementary.

Answer:

answer. option c....

Step-by-step explanation:

option c

Round to the nearest percent

Answers

The answer is 20%. 18% rounded is 20%

Round 42,736,325 to the nearest million

Answers

Answer:

i hope this helps :)

Step-by-step explanation:

Grouped, 19546576 is 19,546,576. We underline through the millions place and mark the next digit. 19,546,576

Because the marked digit is 5, we increase 19 by 1 and replace all digits to the right with zeros: 20,000,000.

Thus 19,546,576 rounded to the nearest million is 20,000,000.

Answer:

43 million

43000000

Step-by-step explanation:

7 rounds up

A credit card company wanted to estimate the proportion of its customers who pay their credit card minimum balance on time. The company sampled 500 records and constructed a confidence interval for the true proportion of customers who pay their credit card minimum balance on time. The resulting 95 percent confidence interval was (0.765, 0.835). Which of the following is a true statement regarding the value of the point estimate and margin of error of the percentage of customers who pay their credit card minimum balance on time?

a. The point estimate is 0.765 and the margin of error is 0.07.
b. The point estimate is 0.765 and the margin of error is 0.835.
c. The point estimate is 0.80 and the margin of error is 0.035.
d. The point estimate is 0.80 and the margin of error is 0.07.
e. The point estimate could be any number within the interval and the margin of error is 0.035.

Answers

Answer: c. The point estimate is 0.80 and the margin of error is 0.035.

Step-by-step explanation:

Given: The 95 percent confidence interval was (0.765, 0.835).

Confidence interval = Point estimate ± Margin of error.

I.e. Point estimate + Margin of error = 0.835 (i)

Point estimate - Margin of error = 0.765 (ii)

Add (i) and (ii), we get

2 (Point estimate)= 1.60

⇒ Point estimate = 0.80

Put this in (i), we get

0.80+Margin of error = 0.835

⇒ Margin of error = 0.835 -0.80

⇒ Margin of error = 0.035

Hence, the correct statement is:

c. The point estimate is 0.80 and the margin of error is 0.035.

find x and round to the nearest tenth

Answers

Answer:

X=21.4

Step-by-step explanation:

^^^

Your answer to your question is X= 21.4

An artist is selling children's crafts. Necklaces cost $2.50 each, and bracelets cost $1.25 each. Select all the combinations of necklaces and bracelets that the artist could sell for exactly $20.00.

15 necklaces and 1 bracelet

8 necklaces and no bracelets

no necklaces and 16 bracelets

3 necklaces and 8 bracelets

no necklaces and 8 bracelets

5 necklaces and 6 bracelets

Answers

Answer:

8 necklaces and no bracelets, no necklaces and 16 bracelets, 5 necklaces and 6 bracelets

Step-by-step explanation:

15 necklaces and 1 bracelet equals $38.75

8 necklaces and no bracelets equals 20

no necklaces and 16 bracelets equals 20

3 necklaces and 8 bracelets equals 17.5

no necklaces and 8 bracelets equals 10

5 necklaces and 6 bracelets equals 20

Sally has 21 books sam has 24 time books than Sally how many books does Sam have

Answers

Can you delete my comment? I made a mistake-

Sally's books = 21

Sam's books

= 24 times Sally's books

= 24 times 21

= 24 × 21

= 504

Other Questions

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I dont understand it​

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I dont understand it